proc-xscale.S, Kconfig:

  IXP4xx support

arch/arm/mm/Kconfig

@@ -220,7 +220,7 @@ config CPU_SA1100
 # XScale
 config CPU_XSCALE
 	bool
-	depends on ARCH_IOP3XX || ARCH_ADIFCC || ARCH_PXA
+	depends on ARCH_IOP3XX || ARCH_ADIFCC || ARCH_PXA || ARCH_IXP4XX
 	default y
 	select CPU_32v5
 	select CPU_ABRT_EV5T

arch/arm/mm/proc-xscale.S

@@ -647,6 +647,11 @@ cpu_pxa210_name:
 	.asciz	"XScale-PXA210"
 	.size	cpu_pxa210_name, . - cpu_pxa210_name
 
+	.type	cpu_ixp42x_name, #object
+cpu_ixp42x_name:
+	.asciz	"XScale-IXP42x Family"
+	.size	cpu_ixp42x_name, . - cpu_ixp42x_name
+
 	.type	cpu_pxa255_name, #object
 cpu_pxa255_name:
 	.asciz	"XScale-PXA255"
@@ -725,6 +730,22 @@ __pxa210_proc_info:
 	.long	xscale_cache_fns
 	.size	__pxa210_proc_info, . - __pxa210_proc_info
 
+	.type	__ixp42x_proc_info, #object
+__ixp42x_proc_info:
+	.long   0x690541c0
+	.long   0xffffffc0
+	.long   0x00000c0e
+	b       __xscale_setup
+	.long   cpu_arch_name
+	.long   cpu_elf_name
+	.long   HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long   cpu_ixp42x_name
+	.long   xscale_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	xscale_mc_user_fns
+	.long	xscale_cache_fns
+	.size   __ixp42x_proc_info, . - __ixp42x_proc_info                
+
 	.type	__pxa255_proc_info,#object
 __pxa255_proc_info:
 	.long	0x69052d00